What was the special mission of John the Baptist?

Answer

"There was a man sent from God, whose name was John. The same came for a witness, to bear witness of
the Light, that all men through him might believe." John 1: 6, 7.

What is one purpose for which the Holy Spirit was sent?
How did Christ make it clear to them that the Scriptures testify of Him?
What indwelling Power keeps such from sinning?
What testimony did Nicodemus bear concerning Him?
What did Christ nail to His cross?
How does God anticipate the needs of His children?
Who notes the groans of the prisoner?

Questions & Answers are from the book Bible Readings for the Home Circle